# BMI Calculator vs Carbscan

The clearest difference is in-app purchases: BMI Calculator at none against Carbscan's 1. BMI Calculator also leads on iOS requirement (12.0 vs 17.6). Carbscan's advantage is ads (none vs shown) and update cadence (every 5 weeks vs every 23 months). On price and device support there is nothing between them.

Both are free to download. Carbscan sells 1 in-app purchase, starting at $0.99 per month. BMI Calculator asks for nothing beyond the download.

BMI Calculator ships an update every 23 months, Carbscan every 5 weeks. The most recent releases landed on November 6, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | BMI Calculator | Carbscan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (53 ratings)](https://appshunter.io/ios/app/bmi-calculator-quick-and-easy/id357370467/reviews)** | — |
| Number of ratings | **53** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 23 months | **Every 5 weeks** |
| Monetization | Ad-supported | — |
| Size | 15 MB | 10 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 17+ |
| Developer | [Lukas Lubbe](https://appshunter.io/developer/357370470) | [敬涛 邱](https://appshunter.io/developer/1864363205) |

## What reviewers say

### BMI Calculator

[App page](https://appshunter.io/ios/app/bmi-calculator-quick-and-easy/id357370467)

Quickly calculate your Body Mass Index (BMI) using your height and weight. Save your history locally or sync with the Health app for easy tracking. Ideal for fitness and health management with a clear, user-friendly interface.

**Highlights:** Instant BMI calculation, Save calculation history, Health app integration, Supports imperial and metric units, Clear user interface

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Carbscan

[App page](https://appshunter.io/ios/app/carbscan/id6757840816)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CarbScan - AI营养分析与碳水追踪 | $0.99 | per month |


## Frequently asked questions

### Is BMI Calculator free?

BMI Calculator is free to download, with no in-app purchases.

### Is Carbscan free?

Carbscan is free to download, with in-app purchases available.

### Do BMI Calculator or Carbscan have ads?

BMI Calculator shows ads; Carbscan does not.

### Which is updated more often, BMI Calculator or Carbscan?

BMI Calculator ships an update every 23 months, and Carbscan every 5 weeks. Most recently, BMI Calculator was updated on November 6, 2026 and Carbscan on November 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*